Asteroid General Data

2021 TW₁

General information

Preliminary designation	2021 TW₁
Group	Apollo
Absolute magnitude	24.01
Approximate diameter (m)	42
Approximate mass (kg)	1.35·10⁸
Number of observations	13
Arc length (days)	20

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	348.041012
a – orbit major semiaxis (astronomical units)	1.86711100
e – orbit eccentricity	0.45690500
ω – orbit ascending node-perihelion angle (degrees)	346.238060
Ω – longitude of orbit ascending node (degrees)	2.390267
i – orbit inclination to the ecliptic plane (degrees)	11.129285

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	223.373888	1.87107256	0.45840754	343.562681	3.887412	11.046620	1.01335879	2.559391
01/21/1858	349.371867	1.86899913	0.45757617	343.919556	3.664140	11.062763	1.01378966	2.555137
01/29/1887	123.864652	1.86609270	0.45727496	344.350896	3.416747	11.090112	1.01277524	2.549180
02/07/1916	258.909028	1.86865525	0.45727539	344.715801	3.221256	11.082870	1.01416520	2.554432
02/14/1945	26.171334	1.87063200	0.45848233	345.233829	2.987707	11.102263	1.01298029	2.558487
02/22/1974	147.587200	1.87158764	0.45787379	345.592687	2.805684	11.097872	1.01463672	2.560447
03/02/2003	270.610748	1.86887115	0.45785449	345.967189	2.567982	11.117647	1.01320011	2.554875
03/09/2032	40.381153	1.86733291	0.45669161	346.374714	2.353121	11.129462	1.01453764	2.551721
03/17/2061	175.462776	1.86653340	0.45688740	346.700398	2.156103	11.134735	1.01373781	2.550083
03/25/2090	308.273451	1.86838917	0.45698424	347.102512	1.959409	11.133158	1.01456476	2.553887
04/03/2119	83.994782	1.86579579	0.45627834	347.598225	1.737157	11.161629	1.01447359	2.548571
04/10/2148	221.974253	1.86328367	0.45536676	348.079821	1.508475	11.198664	1.01480622	2.543426
04/18/2177	9.861778	1.86204239	0.45522221	348.468552	1.311329	11.201429	1.01439934	2.540885

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